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2013-08-11 09:11:45 -0600	commented answer	OpenCV (Java): how to access coordinates returned by findNonZero()? I know about the `get()` method. But the size of output matrix is the same as the input image (as needed by the `findnonzero()` method), so, I still don't know which of the 476,000 pixels are white! If I'm going to check the color of all of them, what's the purpose of `findnonzer()`?
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2013-08-10 00:50:18 -0600	asked a question	OpenCV (Java): how to access coordinates returned by findNonZero()? In my android app, I am using findNonZero() to find and access white points in a binary image. I get the image (called `binMat` with size: 595800) as the input to the method and then I have: `... Mat wLocMat = Mat.zeros(binMat.size(), binMat.channels()); Core.findNonZero(binMat, wLocMat);` The problem is: I don't know how to access the white points' coordinates stored inside the wLocMat! When I log the wLocMat.toString(), I get this: `[ 4760001*CV_32SC2, isCont=true, isSubmat=false, nativeObj=0x74abd920, dataAddr=0x75bac010 ]` So, how exactly can I access the coordinates stored in wLocMat?!